AC 220V Motor Controll with Arduino

Hi there,
i need to controll with the pwm of i arduino drilling machine. I found this schematic and like to build it. will it work as i thought? can i controll the power from 0-100 %?

That looks like it needs synchronous triggering half-cycle-by-half-cycle to give control
of a universal motor. Some (isolated) way of synchronizing to the mains zero-crossings is needed I think.

Is the motor a universal one? You can't use a triac circuit like that on highly inductive
induction motors....

It does say on the diagram that it performs its own zero detection. Unsynchronised PWM would probably work poorly with that component.

Use S208T02 for optotriac driver.